Average Co-Inventor Count = 2.77
ph-index = 2
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Nitto Kogyo Co., Ltd. (2 from 37 patents)
2. Canon Kabushiki Kaisha (1 from 90,594 patents)
3. Ricoh Company, Ltd. (1 from 28,544 patents)
4. Tachi-s Co., Ltd. (1 from 576 patents)
3 patents:
1. 11884185 - Vehicle seat
2. 5615000 - Convey belt and conveying apparatus with it
3. 5240531 - Endless belt